Xtal Set Society, IncThe society publishes several books about crystal radio. Sell crystal set projects, tips for crystal radio design, ham radio kits, radio parts and common radio electronic components

Communication Concepts, Inc.
- Provide components to the amateur who wants to construct their own gear and to the professional who wants to save money and time in prototyping their circuit design, Filters, HF Amplifiers, Splitter Combiners, VHF Amplifiers, ATV

Shopping and Services : Kits and Components

About The DXZone

The DXZone is the largest human created and maintained library of web sites dedicated to Amateur Radio, currently lists 20.000+ links organized into 600+ categories and subcategories. Ham Radio operators review new sites every day since 1998, for potential inclusion in the Directory, and to evaluate the best place to list them.